Gem stone mount



FIG. 1 is a front view of the invention;

FIG. 2 is a rear view;

FIG. 3 is a left side view;

FIG. 4 is a right side view;

FIG. 5 is a top view;

FIG. 6 is a bottom view; and,

FIG. 7 is a perspective view.

The gem stone shown in broken lines is not a part of the claimed design. 

The ornamental design for a gem stone mount, as shown and described. 